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Упит dcterms_subject_txt:deep well pump

939 items

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels

    Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković (2023)
    drilling fluid formulation, upstream oil and gas, fluid dynamics, fluid loss control, gel

  • Analiza softvera za projektovanje ESP sistema

    Aleksandar Sredojević (2024)
    U momentu kada pritisak na dnu bušotine nije dovoljan da savlada ukupne gubitke pritisaka od dna bušotine do separatora, proizvodnja pomoću ležišne energije nije više moguća i bušotina prestaje sa eruptivnim radom. Kako bi ponovo omogućili proizvodnju fluida iz bušotine, potrebno je primeniti neke od mehaničkih metoda eksploatacije. Najprimenljivije mehaničke metode eksploatacije su: gas lift (GL), dubinske pumpe sa klipnim šipkama (SRP), električne uronjene centrifugalne pumpe (ESP), zavojne pumpe (PCP) i hidraulične pumpe (HP). Jadna od tih metoda koja ...
    električna centrifugalna pumpa (ESP), proizvodnja fluida, mehaničke metode eksploatacije, Prosper, Pipesim
    ... Pressure 1.1 BARa }i T 480| Allow Tapered ESPs No Number of Motors Number Of Stages 326 Voltage At Surface. 1000 Pump Wear Factor 0.05 'Gas DeRating Model 'Current Pump, BORETS ESPM5-50 92.0001 mm (25-70.0001 m3/day) Current Motor, Boret EDB125-117B5 168HP 2100V 49A Current Cable #6 ...
    ... „Electrical Submersible Pump Design in Vertical Oil Wells“; Abdlunebi Jasim Kaiser, „ESP Design Electric Submersible Pumps“; Amao Matthew, (2014). „Electrical Submersible Pumping (ESP) Systems“; American Petroleum Institute (1997). „Recommended practice for electric submersible pump testing: API RP 11S2 ...
    ... F., George, S., (2017). „Operating Parameters of Electrical Submersible Pump Simulation Using Excel Vol. 4, Issue 5“, Petroleum Engineer, Federal University of Bahia; Warlyng: Burney, (2000). „Electrica! Submersible Pump Basics“, Shell International Exploration and Production B.V. (SIEP); Zelić ...

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... excess late-night wind energy to pump water uphill from the pits to a higher-elevation holding pond. During the day, when electricity demand goes up, the flow is reversed and energy captured in hydro turbines. According to this study, for every 100 megawatts used to pump the water upward during night ...
    ... data include: basic data, hydrogeology, biology, geology and mining as well as specific information related to the terrain of abandoned mines [23]. Spatial data in the aforementioned study on terrain of abandoned mines as well as data concerning the remediation of this terrain were generally available ...
    ... waste landfills within the mining waste field, as well as other data related to the management of mining waste. In the cadastre of abandoned mines and mining facilities data on the position and status of these mines and mine facilities are entered, as well as data on implemented measures for remediation ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... difference between the inlet and outlet. Here, the power consumed in a pump is added to the calculation of the exergy loss for a pump. In contrast, the power produced in a turbine is subtracted from the exergy loss of a turbine Pump: AEX loss= n'(eXin-eXou)+W"p (11) Turbine: AEx loss=h(eXin-e ...
    ... [53] 4.1. Injection into Deep Saline Aquifers Injecting carbon dioxide (CO) into deep saline aquifers is one of four main options for the geological storage of CO- to decrease anthropogenic greenhouse gas emissions into the atmosphere [54]. Saline formations are deep sedimentary rocks containing ...
    ... —20 to +150 USS/tCO2. It concluded that only the most favorable sites, representing less than 10% of global capacity, could have negative costs. Pump Water CH, CHua to pipe line Water to disposal -) Coal senm Coal seam Figure 4.6 A coal seam bed where CO2 is stored after replacing methane ...

  • Valorization of non-balanced coal reserves in Serbia for underground coal gasification

    David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)
    In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...
    ugalj, gasifikacija, zaštita životne sredine, skladištenje, solarna
    ... water pressure with a pump set, and — by establishing a link with hydraulic fracturing, by means of high-pressure injection of the fluid (such as water, gel or foam), containing send or other proppants suspended with var- ious agents. Hydraulic fracturing creates cracks in the deep rock formations through ...
    ... noise or any other negative effects on the environment. Possible subsidence of the terrain Itis well known that the terrain subsidence of the UCG utilization at the surface (up to 50-60 m deep) is less prominent, because there are generally small thicknesses of layers, often uninteresting for ...
    ... be investigated for the UCG application. For the implementation of UCG process in the pro- 25m 25m 25 posed Pilot Plant, fig. 6, it is necessary to pump the air (or some other agent) in quantities of #000-9000 mž of gas/h, under pressure of = 2.5-3 bar. For the preliminary decomposition or fracturing ...

  • Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons

    Predrag Pajić, Aleksandar Čalenić, Dušan Polomčić, Dragoljub Bajić (2018)
    U ovom radu sagledana je primena hidrodinamičke analize u okviru odabrane remedijacione metode ,,pumpanja i tretiranja” kontaminiranih podzemnih voda ugljovodonicima, na primeru pretakališta rafinerije nafte u Pančevu. Primenjena hidrodinamička analiza predstavlja pravilan, a sve češće i neophodan pristup u savremenoj hidrogeologiji. Prethodnim hemijskim analizama uzoraka tla i podzemnih voda na istražno-osmatračkim objektima detektovano je zagađenje produktima nafte. Novoizvedena istraživanja obuhvatila su izvođenje 12 pijezometara različitih dubina, geoelektrično sondiranje tla, ,,in situ” merenja prisutnog kontaminanta, izdvojenog kao hidrofobna faza LNAPL, ...
    kontaminacija, matematički model, podzemne vode, remedijacija, ugljovodonici

  • Transition pathways of household heating in Serbia: Analysis based on an agent-based model

    Boban Pavlović, Dejan Ivezić, Marija Živković (2022)
    To explore pathways of the energy transition of household heating, an agent-based simulation model was developed for the case of the Serbian household sector. The model is focused on individual entities (households) with the objective to explore the effects of policy instruments on energy transition in households with individual heating systems. Empirically collected survey data were used as input for households’ attitudes towards sustainable heating. Simulations showed that the proposed instruments would lead to higher heating efficiency and less ...
    energetska tranzicija, modeliranje bazirano na agentima, sistemi grejanja, sektor domaćinstva, obnovljivi izvori energije, emisija CO2

  • Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals

    Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)
    As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • Димензионисање система завојних пумпи

    Марија Дивац (2024)
    Овај завршни рад се бави димензионисањем система завојних пумпи (Progressive Cavity Pumps - PCP) које се широко користе у нафтној и гасној индустрији, нарочито за подизање тешких и вискозних флуида. Завојне пумпе су се показале као ефикасно решење у бушотинама са сложеним условима,захваљујући својој способности да транспортују флуиде са високим садржајем чврстих честица и гаса.Рад обухвата анализу кључних параметара као што су вискозност, густина, дубина бушотине и притисак, који су пресудни за избор одговарајуће пумпе.Применом софтверског алата извршена је ...
    завојне пумпе, димензионисање, експлоатација нафте, вискозни флуиди, софтверска симулација, PCP пумпе
    ... MexaHuuke MemoOe ekcnaoamauuje nad)mnaux OyuiomuHa npu.MeHoM qdba3u noouke; 2. Wang, H., 2010., Reliability Improvement of Progressive Cavity Pump in a Deep Heavy Oil Reservoir, China University of Petroleum, and Daoyong Yang, SPE, University of Regina; 3. Ramos, M.A., Brown, J.C., Rojas, M., Kuyucu ...
    ... IapaMeTPe. 6.1. Omnmrru nojtanu o OymIoTHHH CxoHo oyjpebeHoM moreHmujamy OymroTMuHe X-022, omuyueHo je ma ce HMIIIeMeHTHpa PCP (Progressing Cavity Pump) cacreM. V raOenaMa Hcroji cy naTH omru nojlaru OymIoTHHe KOJH Ce KODpHCTe IIDpHJIHKOM IIpopauyHa. Ta0ena I OTIIHITH IIOJ[ALNIH JliHaMHuKuH ...
    ... Bottom-Drive Progressive Cavity Pumps, 4. Zimmer, L., Young, E., Bertomeu, F., 2012., Successful Deployment of a New Generation of Progressive Cavity Pump in a High GOR A4rgentinian Heavy Oil Field; 35. Sathyamoorthy, S., Stezn, A., McGilvray, J., Fuchs, H., Ainebyona, B., Kyomugisha, P., Vijapurapu ...

  • State and perspective of individual household heating in Serbia: A survey-based study

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...
    Domaćinstva, Individualni sistemi grejanja, Korišćenje energije, Stavovi potrošača, Anketa, Srbija

  • Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia

    Dragoljub Bajić, Dušan Polomčić (2014)
    A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...
    groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables
    ... of Operational Research Society, 51: 341–349. POLOMČIĆ, D. & BAJIĆ, D. 2014. Application of hydrody- namic predictive modeling on the example of the pump- ing station “Bezdan 1”. Tehnika, 65 (6): 956–962 (in Serbian, English summary). SINGH A.P., GHOSH S.K., SHARMA P. (2007). Water quality management ...
    ... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Introduction The best way engineers or scientists can express ...
    ... method was used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec- tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternatives and the best alternative was selected for groundwater control at the site ...

  • Препреке декарбонизацији система даљинског грејања у Србији - ставови представника топлана

    Марија Живковић, Дејан Ивезић, Бобан Павловић, Дејан Стојановић (2024)
    Производња топлоте у системима даљинског грејања у Републици Србији тренутно се заснива искључиво на процесима сагоревања, с доминантним уделом природног гаса из увоза. Иако су технологије за коришћење обновљивих и алтернативних извора енергије добро познате, њихова примена у системима даљинског грејања у Републици Србији још увек је занемарљива (око 2%). Како би се убрзао и олакшао процес транзиције ка обновљивим изворима енергије и разумело тренутно стање и перспектива, спроведена је анкета међу представницима топлана Србији. Циљ је био ...
    системи даљинског грејања, препреке, обновљиви извори енергије, Србија

  • Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

    Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)
    To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...
    Perovskite/spinel ceramics, Multiferroic, Sintering, Influence of synthesis method

  • Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... process of deep karstification within karst systems, as well as hrough the existence of certain geological barriers that caused significant vertical karsti- ication. The circulation of groundwater through certain vertical horizons with different velocities and mean residence times, as well as different ...
    ... there are several, more complex systems with deep siphonal circulation of groundwater of subthermal and thermal character, among, which the Suvi Do and Krepoljinska Banjica System, the Sisevac System, and the Krivi Vir System stand out [12,21], as well as the Mlava-Belosavac-Belosavac 2 System, located ...
    ... —— t3 Deep and slow circulation PZ - Paleosoicschit t4 Vary deep and slow circulation Karst aquifer Figure 7. Schematic overview of karst conduits according, to groundwater mean residence times for the Krupaja system [12]. The main channels, their main recharge zones, and the deep circulation ...

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... Measurement of groundwater level The Center for Karst Hydrogeology is equipped with both mechanical groundwater level meters up to 50 m and 100 m deep, as well as digital data loggers (diver), compact groundwater monitoring instrument for the continuous and autonomous measuring of level and temperature ...
    ... exploitation objects The CKH is also equipped with the most modern portable field pumps for sampling groundwater from exploratory wells: Booster pump "Gigant". These are light autonomous pumps with the ability to sample water up to 60 m from wells with a diameter of only 50 mm. In addition to ...
    ... used for frequent sampling from exploratory wells and from certain depths, mainly for the purposes of tracer tests or taking a water sample, when no pump is installed in it. 15 CKH uglavnom projektovani za prečnike od 50 mm pa naviše i imaju, pri dobroj vidljivosti, osvetljenje i rezoluciju za ...

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"

    Tomislav Trpković (2024)
    Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...
    postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod
    ... the Pump Station, connected by FRP (Fiberglass Reinforced Plastic) pipelines that transport the gypsum suspension essential in the flue gas desulfurization process. In addition to the technical description of the technology itself, which includes three facilities: the Absorber, the Pump Station ...
    ... calculation and adoption (dimensioning) of the mechanical installations at one pump station B2 at absorber B2, whose calculation will be performed in this paper. Keywords: Flue Gas Desulfurization Plant, Thermal Power Plant, Pump Station, FRP Pipeline, Absorber, Gypsum Slurry Transport, Flange, Valve ...
    ... will be a separate section that will generally address the types of pumps. The fourth part of the paper will include a technical description of the Pump Station, explaining in detail the operation of the transport of the limestone and gypsum suspension through the recirculating pumps and pipelines ...

  • Analiza rada električnih centrifugalnih pumpi

    Milica Stanojević (2024)
    Ovaj rad analizira rad električne centrifugalne pumpe (ESP) u naftnoj industriji, sa fokusom na problem taloženja kamenca (karbonatnih naslaga) unutar sistema. Električne centrifugalne pumpe (ESP) predstavljaju srce mnogih naftnih bušotina. Njihova visoka pouzdanost i sposobnost rada u zahtevnim uslovima čine ih neophodnim za stabilnu i kontinuiranu proizvodnju.Senzori igraju ključnu ulogu u praćenju rada ESP sistema i detekciji ranih znakova taloženja kamenca. Problem taloženja kamenca je izuzetno značajan, jer može dovesti do smanjenja efikasnosti pumpe, povećanja troškova održavanja, i dugoročnih zastoja ...
    električne centrifugalne pumpe (ESP), formiranje kamenca (karbonatnih naslaga), hemijski inhibitori
    ... 2017. b, „Motor Seal”, URL: https:/Droduction- technology.org/motor-seal/ (01.11.2020). 11. Fetouti, 1., 2017. c, „ESP Pump /ntake”, URL: https://productiontechnology.org/esp-pump-intake/ (10.11.2020). 12.INA d.d., 2019., „ Tehnička dokumentacija “ 13. Halliburton, 2019. „7he New Standard For Electric ...
    ... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Univerzitet u Beogradu Rudarsko-geološki fakultet Završni ...